Analysis
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max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
20-04-2024 07:18
Static task
static1
Behavioral task
behavioral1
Sample
c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll
Resource
win10v2004-20240412-en
General
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Target
c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll
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Size
240KB
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MD5
2f445c6e9f27a780f9722e6e86cfed4a
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SHA1
798d0440f192a99c7c2610b429e1d14ff6ed34e5
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SHA256
c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950
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SHA512
f7c8e396f35ce214b35ad3794b8c6d83d82c2417f022057365fb20ff444b38b8bded6ffd578d702b88afe059a0c968e345aa220e77fc58c63ea67fedcd344091
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SSDEEP
6144:65r3lV6n42+3WSKhxD8RVo2rcaGKNqAwyotp25:6C+3xWDY9IpKNTwyoS
Malware Config
Signatures
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Blocklisted process makes network request 5 IoCs
Processes:
rundll32.exeflow pid process 19 1348 rundll32.exe 47 1348 rundll32.exe 48 1348 rundll32.exe 49 1348 rundll32.exe 94 1348 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Platform = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll\",Erase" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\k: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
rundll32.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 1348 rundll32.exe 1348 rundll32.exe 1348 rundll32.exe 1348 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 1348 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 2684 wrote to memory of 1348 2684 rundll32.exe rundll32.exe PID 2684 wrote to memory of 1348 2684 rundll32.exe rundll32.exe PID 2684 wrote to memory of 1348 2684 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c0d00a5b62c32ecd04a924ae775b316592bec1bb59e1ff527818cb307eae9950.dll,#12⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1